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Progress on nuclear reaction rates affecting the stellar production of <sup>26</sup>Al

Laird, A. M.; Lugaro, M.; Kankainen, A.; Adsley, P.; Bardayan, D. W.; Brinkman, H. E.; Côté, B.; Deibel, C. M.; Diehl, R.; Hammache, F.; den Hartogh, J. W.; José, J.; Kurtulgil, D.; Lederer-Woods, C.; Lotay, G.; Meynet, G.; Palmerini, S.; Pignatari, M.; Reifarth, R.; de Séréville, N.; Sieverding, A.; Stancliffe, R. J.; Trueman, T. C.L.; Lawson, T.; Vink, J. S.; Massimi, C.; Mengoni, A.


A. M. Laird

M. Lugaro

A. Kankainen

P. Adsley

D. W. Bardayan

H. E. Brinkman

B. Côté

C. M. Deibel

R. Diehl

F. Hammache

J. W. den Hartogh

J. José

D. Kurtulgil

C. Lederer-Woods

G. Lotay

G. Meynet

S. Palmerini

M. Pignatari

R. Reifarth

N. de Séréville

A. Sieverding

R. J. Stancliffe

T. C.L. Trueman

T. Lawson

J. S. Vink

C. Massimi

A. Mengoni


The radioisotope 26Al is a key observable for nucleosynthesis in the Galaxy and the environment of the early Solar System. To properly interpret the large variety of astronomical and meteoritic data, it is crucial to understand both the nuclear reactions involved in the production of 26Al in the relevant stellar sites and the physics of such sites. These range from the winds of low- and intermediate-mass asymptotic giant branch stars; to massive and very massive stars, both their Wolf-Rayet winds and their final core-collapse supernovae (CCSN); and the ejecta from novae, the explosions that occur on the surface of a white dwarf accreting material from a stellar companion. Several reactions affect the production of 26Al in these astrophysical objects, including (but not limited to) 25Mg(p, γ)26Al, 26Al(p, γ)27Si, and 26Al(n, p/α). Extensive experimental effort has been spent during recent years to improve our understanding of such key reactions. Here we present a summary of the astrophysical motivation for the study of 26Al, a review of its production in the different stellar sites, and a timely evaluation of the currently available nuclear data. We also provide recommendations for the nuclear input into stellar models and suggest relevant, future experimental work.


Laird, A. M., Lugaro, M., Kankainen, A., Adsley, P., Bardayan, D. W., Brinkman, H. E., …Mengoni, A. (2023). Progress on nuclear reaction rates affecting the stellar production of 26Al. Journal of Physics G: Nuclear and Particle Physics, 50(3), Article 033002.

Journal Article Type Review
Acceptance Date Oct 24, 2023
Online Publication Date Feb 28, 2023
Publication Date 2023
Deposit Date Apr 28, 2023
Publicly Available Date Apr 28, 2023
Journal Journal of Physics G: Nuclear and Particle Physics
Print ISSN 0954-3899
Electronic ISSN 1361-6471
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 50
Issue 3
Article Number 033002
Public URL


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